Improvement in balancing polishing-wheels



whichcentre-oi` the hole at the end.

HORACE K. `JONES, OF KENSINGTON, CONNECTICUT.

Letters Patent No. 79,475, dated J'Lme 30, 1868.`

IMPROVEMENT IN BALANGING POLISHING-WHBELS.

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TO ALL WHOM IT MAY'CONCERN:

Be it known that I, HORACE K. JONES, ofoKensington, in the county ofHartford, and State of Connectiout, have invented a. new and'mprovedMethod of Balancing Polishing-Wheels; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to 'make and use the samcfreferenicebeing had to-the accompanying drawing, forming part of thisspecification, in

Figure 1 is an elevation, showing a wheel with thebalancing-weights'attached.

Figure 2 is a plan of the same.

y Figure 3 is'a plan of the weight'iB.

Figure 4 is a longitudinal section of the same.

Similarle'tters ofreference indicate like parts.

This invention consists in' the use, for the purpose of balancingpolishing-wheels, of two or more weights, attached to'lth'e side of thewheel in such a manner that each may swing upon a lpivot, ixed at aconvenient distance lbetween the axis and circumference of the wheel towhich each is attached by a screw, by which it may be 'firmly ixed inany desired position within the limit of its motion; also, in attaching,when necessary, a zged weight to the side of the wheel, at a pointopposite the movable ones. When from any cause the wheel becomes heavierupon one side ofvits axis than upon the other, the movable weights canbe moved towards the lightside until the wheel is perfectly balanced. l

B represents a weight, made ot flat rolled iron dr other suitablematerial, with a hole at one cnd for the reception of' thefserew E, andcentaininga slot,` curved so that it is at all par/ts at an equaldistance from the a screw, passing through the curvedl slot in theweight B, into the wheel A.

E is another screw,.passing through l'the hole inthe rend of the weightB, into the wheel A, and forming the pivot upon which the weight swings.j

D is a weight, fixed in the side of the wheel'to counterbalance themovable weights B B.

' The weights 'B B having 'been attached to the side of the wheel A bythe screws C and E, and radiating from the centre of the'wheel about onehundred audtwenty degrees apart, the weight D, of iron or other substance, is'insertcd in the side of the wheel, to counterbalance theweights B B; or instead of this, there may be three or more of theweights B, fixed at equal distances around the axis of the wheel. Itfrequently occurs that the wheel, when made, is sulhciently heavy on oneside of the axis to counterbalance the weights B B, in which case noweight D is required Whenever the wheel A, thus provided with movableweights, from any cause loses its equilibrium, it is put on a mandrel,which is placed upon parallel horizontal ways, anrl,the heavy partsettling at thebottom, the weights-B B may be moved till the equilibriumis restored, when the wheel will be ready for use.-

I claim as new, and desire to secure by Letters Patent- 1. The use, forthe purpose of balancing wheels, of two or more weights, swinging uponpivots located between the axis and periphery, and capable otybeingfixed at anypoint upon the side ofthe wheels, within the limit'of theirmotion,'by` a screw or other suitable means.

2.*-The combination of the movable weights B B with the Jfired weight Dfor the purpose specified.

v i HORACE K. JONES.

v.1.11. WooDwAnD,

FANNY' Hnrcnmss.

